Rope

A rope is a group of yarns, plies, or strands that are twisted or braided together into a larger and stronger form. Ropes have tensile strength and so can be used for dragging and lifting, but are too flexible to provide compressive strength. As a result, they cannot be used for pushing or similar compressive applications. Rope is thicker and stronger than similarly constructed cord, line, string, and twine. Ropes made from metal strands are called wire rope.

Construction

Rope may be constructed of any long, stringy, fibrous material, but generally is constructed of certain natural or synthetic fibres. Synthetic fibre ropes are significantly stronger than their natural fibre counterparts, but also possess certain disadvantages, including slipperiness.

Common natural fibres for rope are manila hemp, hemp, linen, cotton, coir, jute, straw, and sisal. Synthetic fibres in use for rope-making include polypropylene, nylon, polyesters (e.g. PET, LCP, HDPE, Vectran), polyethylene (e.g. Dyneema and Spectra), Aramids (e.g. Twaron, Technora and Kevlar) and acrylics (e.g. Dralon). Some ropes are constructed of mixtures of several fibres or use co-polymer fibres. Wire rope is made of steel or other metal alloys. Ropes have been constructed of other fibrous materials such as silk, wool, and hair, but such ropes are not generally available. Rayon is a regenerated fibre used to make decorative rope.

Rope (data structure)

In computer programming, a rope, or cord, is a data structure composed of smaller strings that is used for efficiently storing and manipulating a very long string. For example, a text editing program may use a rope to represent the text being edited, so that operations such as insertion, deletion, and random access can be done efficiently.

Description

A rope is a binary tree having leaf nodes that contain a short string. Each node has a weight value equal to the length of its string plus the sum of all leaf nodes' weight in its left subtree, namely the weight of a node is the total string length in its left subtree for a non-leaf node, or the string length of itself for a leaf node. Thus a node with two children divides the whole string into two parts: the left subtree stores the first part of the string. The right subtree stores the second part and its weight is the sum of the left child's weight and the length of its contained string.

The binary tree can be seen as several levels of nodes. The bottom level contains all the nodes that contain a string. Higher levels have fewer and fewer nodes. The top level consists of a single "root" node. The rope is built by putting the nodes with short strings in the bottom level, then attaching a random half of the nodes to parent nodes in the next level.

Rope (unit)

A rope may refer to any of several units of measurement initially determined or formed by ropes or knotted cords.

Length

The Greco-Roman schoenus, supposedly based on an Egyptian unit derived from a wound reed measuring rope, may also be given in translation as a "rope". According to Strabo, it varied in length between 30 to 120 stadia (roughly 5 to 20 km) depending on local custom.

The Byzantine equivalent, the schoinion or "little rope", varied between 60 to 72 Greek feet depending upon the location.

The Thai sen of 20 Thai fathoms or 40 m also means and is translated "rope".

The Somerset rope was a former English unit used in drainage and hedging. It was 20 feet (now precisely 6.096 m).

Area

The Romans used the schoenus as an alternate name for the half-jugerum formed by a square with sides of 120 Roman feet.

In Somerset, the rope could also double as a measure of area equivalent to 20 feet by 1 foot. Walls in Somerset were formerly sold "per rope" of 20 sq ft.

Garlic

In medieval English units, the rope of garlic was a set unit of 15 heads of garlic. 15 such ropes made up the "hundred" of garlic.

Suck

Suck may refer to:

In media:

See also

Suck (band)

Suck were a rock band who were part of South Africa's first wave of hard rock titled, the "Big Heavies." The group lasted eight months between 1970 to 1971 in which they recorded their lone LP, Time to Suck. It was later released in America in 2009. They were also one of the earliest groups to cover Black Sabbath. In March 2007 they were featured in an article in Classic Rock magazine titled, "The Lost Pioneers of Heavy Metal" where they were referred to as "acidpunk metal".

Discography

Personnel

References

Notes

Suck (film)

Suck is a 2009 rock-and-roll vampire black comedy film starring, written and directed by Rob Stefaniuk. Stefaniuk stars alongside Canadian actress Jessica Paré, Nicole de Boer (his castmate from the TV series Catwalk), Malcolm McDowell and rock legends Alice Cooper, Iggy Pop, Henry Rollins and Alex Lifeson of Rush. Production took place in and around Toronto in late 2008.

Premise and plot

The film follows a failed rock band called the Winners as they tour across Canada and the USA. After band member Jennifer is turned into a vampire, the band quickly gains a following of groupies attracted to her newfound beauty. As their infamy grows, the vampire hunter Eddie Van Helsing learns that Jennifer is a vampire and vows to hunt her down. While on tour, the band members are each turned into vampires, one by one. Although the band continues to grow in popularity, band member Joey loses interest in the vampire lifestyle and eventually convinces Jennifer that they should become human again. After a brief altercation, Eddie agrees to help the band upon hearing of their plans to become human. They track down Queenie, the vampire who turned Jennifer, intending to kill him. During the fight, Queenie nearly kills Eddie, before he is stabbed in the heart by Joey. The band members become human again as a result of his death, and they happily return home. Six months later, Joey and Jennifer are shown to have grown bored with their human lives in suburbia. They are approached by a bartender who had previously served at their gigs; he reveals himself to be an entity more powerful even than Queenie (the implication being that the bartender is Satan himself) and he offers them the opportunity to be even more powerful and more famous than they were as vampires. It is implied that Joey and Jennifer accept the offer, despite the chaos caused during their time as vampires.